209340915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{25237}}^1$

素因数の和:25331

約数の個数: 32

約数和(自身を含む): 387655680

約数和(自身を除く): 178314765

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 395, 553, 1185, 1659, 2765, 8295, 25237, 75711, 126185, 176659, 378555, 529977, 883295, 1993723, 2649885, 5981169, 9968615, 13956061, 29905845, 41868183, 69780305, 209340915]

約数ペア:

[(1, 209340915), (3, 69780305), (5, 41868183), (7, 29905845), (15, 13956061), (21, 9968615), (35, 5981169), (79, 2649885), (105, 1993723), (237, 883295), (395, 529977), (553, 378555), (1185, 176659), (1659, 126185), (2765, 75711), (8295, 25237)]